Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board

Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board

Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board


An I2C temperature and humidity sensor based on HTU21D-F.

Guarantee of quality This product is an official product of the brand Adafruit

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More info

It's summer and you're sweating and your hair is all frizzy and all you really want to know is why the meteorologist said this morning that today's relative humidity would reach a perfectly reasonable maximum of 52% while it's rather 77%. With this temperature and humidity sensor HTU21D-F is the best way to prove the meteorologist wrong!

This I2C digital humidity sensor is a precise and intelligent alternative to the much simpler humidity and temperature sensor - SHT15 Breakout It has a typical accuracy of ±2% with an operating range that is optimized from 5% to 95% RH. Operation outside this range is always possible - just the accuracy may drop a little. The temperature output has an accuracy of ±1°C of -30~90°C. If you are looking to measure temperature more accurately, we recommend the high-precision I2C temperature sensor expansion card MCP9808.

Such a beautiful chip - that's why we developed a breakout card that includes the Filtered version (the white plastic piece that is a PTFE filter to keep the sensor clean), a 3.3V regulator and an I2C level shift circuit. This allows you to use it safely with any type of microcontroller with 3.3V-5V or logic power supply. Each order comes with a fully assembled and tested printed circuit board and connector. You will have to solder the connector to the PCB but it is quite easy and takes only a few minutes even for a beginner.

Technical details

    Dimensions: 18mm x 16mm x 16mm x 2mm / 0.7" x 0.6" x 0.6" x 0.08" x 0.08
    Weight: 1g
    I2C address 7 bits 0x40


Adafruit HTU21D-F Temperature & Humidity Sensor


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